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Saetang J, Sukkapat P, Mittal A, Julamanee J, Khopanlert W, Maneechai K, Nazeer RA, Sangkhathat S, Benjakul S. Proteome Analysis of the Antiproliferative Activity of the Novel Chitooligosaccharide-Gallic Acid Conjugate against the SW620 Colon Cancer Cell Line. Biomedicines 2023; 11:1683. [PMID: 37371778 DOI: 10.3390/biomedicines11061683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 06/07/2023] [Accepted: 06/08/2023] [Indexed: 06/29/2023] Open
Abstract
Chitooligosaccharide (COS) and gallic acid (GA) are natural compounds with anti-cancer properties, and their conjugate (COS-GA) has several biological activities. Herein, the anti-cancer activity of COS-GA in SW620 colon cancer cells was investigated. MTT assay was used to evaluate cell viability after treatment with 62.5, 122, and 250 µg/mL of COS, GA, and COS-GA for 24 and 48 h. The number of apoptotic cells was determined using flow cytometry. Proteomic analysis was used to explore the mechanisms of action of different compounds. COS-GA and GA showed a stronger anti-cancer effect than COS by reducing SW620 cell proliferation at 125 and 250 µg/mL within 24 h. Flow cytometry revealed 20% apoptosis after COS-GA treatment for 24 h. Thus, GA majorly contributed to the enhanced anti-cancer activity of COS via conjugation. Proteomic analysis revealed alterations in protein translation and DNA duplication in the COS group and the structural constituents of the cytoskeleton, intermediate filament organization, the mitochondrial nucleoid, and glycolytic processes in the COS-GA group. Anti-cancer-activity-related proteins were altered, including CLTA, HSPA9, HIST2H2BF, KRT18, HINT1, DSP, and VIM. Overall, the COS-GA conjugate can serve as a potential anti-cancer agent for the safe and effective treatment of colon cancer.
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Affiliation(s)
- Jirakrit Saetang
- International Center of Excellence in Seafood Science and Innovation, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai 90110, Songkhla, Thailand
| | - Phutthipong Sukkapat
- International Center of Excellence in Seafood Science and Innovation, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai 90110, Songkhla, Thailand
| | - Ajay Mittal
- International Center of Excellence in Seafood Science and Innovation, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai 90110, Songkhla, Thailand
| | - Jakrawadee Julamanee
- Stem Cell Laboratory, Hematology Unit, Division of Internal Medicine, Faculty of Medicine, Prince of Songkla University, Hat Yai 90110, Songkhla, Thailand
| | - Wannakorn Khopanlert
- Stem Cell Laboratory, Hematology Unit, Division of Internal Medicine, Faculty of Medicine, Prince of Songkla University, Hat Yai 90110, Songkhla, Thailand
| | - Kajornkiat Maneechai
- Stem Cell Laboratory, Hematology Unit, Division of Internal Medicine, Faculty of Medicine, Prince of Songkla University, Hat Yai 90110, Songkhla, Thailand
| | - Rasool Abdul Nazeer
- Biopharmaceuticals Lab, Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Chennai 603203, Tamilnadu, India
| | - Surasak Sangkhathat
- Department of Surgery, Faculty of Medicine, Prince of Songkla University, Hat Yai 90110, Songkhla, Thailand
- Translational Medicine Research Center, Faculty of Medicine, Prince of Songkla University, Hat Yai 90110, Songkhla, Thailand
| | - Soottawat Benjakul
- International Center of Excellence in Seafood Science and Innovation, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai 90110, Songkhla, Thailand
- Department of Food and Nutrition, Kyung Hee University, Seoul 02447, Republic of Korea
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Tang Y, Xie T, Wu S, Yang Q, Liu T, Li C, Liu S, Shao Z, Zhang X. Quantitative proteomics revealed the molecular characteristics of distinct types of granulated somatotroph adenomas. Endocrine 2021; 74:375-386. [PMID: 34043183 DOI: 10.1007/s12020-021-02767-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 05/15/2021] [Indexed: 10/21/2022]
Abstract
PURPOSE Somatotroph adenomas are obviously heterogeneous in clinical characteristics, imaging performance, pathological diagnosis and therapeutic effect. The heterogeneity of the tumors, especially for SG and DG type adenomas, have attracted great interest in identifying the specific pathological markers and therapeutic targets of them. However, previous analyses of the molecular characteristics of the subtypes of somatotroph adenomas were performed at genomic and transcriptome level. The proteomic differences between the two subtypes of somatotroph adenomas are still unknown. METHODS Tumor samples were surgically removed from 10 sporadic pituitary somatotroph adenoma patients and grouped according to the pathological type. Tandem mass tag (TMT)-based quantitative proteomic analysis was employed to analyze the proteomic differences between SG and DG tumors. RESULTS In total, 228 differentially expressed proteins were identified between SG adenomas and DG adenomas. They were enriched mainly in extracellular matrix (ECM)-receptor interaction, leukocyte transendothelial migration, arrhythmogenic right ventricular cardiomyopathy and DNA replication pathways. Protein-protein interaction (PPI) network analysis indicated that Cadherin-1 and Catenin beta-1 were the most important key proteins in the differences between SG and DG adenomas. Immunohistochemistry (IHC) confirmed the expression levels of the key proteins. CONCLUSIONS This study provides large-scale proteome molecular characteristics of distinct granulation subtypes of somatotroph adenomas. Compared with DG adenomas, The differential protein of SG adenomas mostly enrich in invasive and proliferative functions and pathways at the proteomic level. Cadherin-1 and Catenin beta-1 play key roles in the different biological characteristics of the two tumor subtypes.
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Affiliation(s)
- Yifan Tang
- Department of Neurosurgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Tao Xie
- Department of Neurosurgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Silin Wu
- Department of Neurosurgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Qiaoqiao Yang
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China
| | - Tengfei Liu
- Department of Neurosurgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Chen Li
- Department of Neurosurgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Shuang Liu
- Department of Neurosurgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zhiyong Shao
- Department of Neurosurgery, Zhongshan Hospital, Fudan University, Shanghai, China
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, China
| | - Xiaobiao Zhang
- Department of Neurosurgery, Zhongshan Hospital, Fudan University, Shanghai, China.
- Digital Medical Research Center, Fudan University, Shanghai, China.
- Shanghai Key Laboratory of Medical Image Computing and Computer-Assisted Intervention, Shanghai, China.
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3
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Qian YC, Xie YX, Wang CS, Shi ZM, Jiang CF, Tang YY, Qian X, Wang L, Jiang BH. Mkrn2 deficiency induces teratozoospermia and male infertility through p53/PERP-mediated apoptosis in testis. Asian J Androl 2021; 22:414-421. [PMID: 31489847 PMCID: PMC7406093 DOI: 10.4103/aja.aja_76_19] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The apoptosis that occurs in the immature testis under physiological conditions is necessary for male germ cell development, whereas improper activation of apoptosis can impair spermatogenesis and cause defects in reproduction. We previously demonstrated that in mice, the makorin-2 (Mkrn2) gene is expressed exclusively in the testis and its deletion leads to male infertility. To understand the potential molecular mechanism, in this study, we found that levels of apoptosis in the testis were abnormally high in the absence of Mkrn2. To identify specific gene(s) involved, we performed digital gene expression profiling (DGE) and pathway analysis via gene set enrichment analysis (GSEA) and the Kyoto Encyclopedia of Genes and Genomes (KEGG) database, and we found that MKRN2 inhibits p53 apoptosis effector related to PMP22 (PERP) expression and that levels of the protein in sperm samples have an inverse correlation with infertility levels. GSEA additionally indicated that PERP is a negative regulator of spermatogenesis and that its ectopic expression induces male infertility. Further, Gene Expression Omnibus (GEO) dataset analysis showed that p53, upstream of PERP, was upregulated in oligoasthenoteratozoospermia (OAT). These observations suggest that Mkrn2 is crucial for protecting germ cells from excessive apoptosis and implicate Mkrn2-based suppression of the p53/PERP signaling pathway in spermatogenesis and male fertility.
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Affiliation(s)
- Ying-Chen Qian
- Department of Pathology, Nanjing Medical University, Nanjing 210029, China
| | - Yun-Xia Xie
- Department of Pathology, Nanjing Medical University, Nanjing 210029, China
| | - Chao-Shan Wang
- Department of Pathology, Nanjing Medical University, Nanjing 210029, China
| | - Zhu-Mei Shi
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Cheng-Fei Jiang
- Department of Pathology, Nanjing Medical University, Nanjing 210029, China
| | - Yun-Yi Tang
- Department of Pathology, Nanjing Medical University, Nanjing 210029, China
| | - Xu Qian
- Department of Pathology, Nanjing Medical University, Nanjing 210029, China
| | - Lin Wang
- The Academy of Medical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Bing-Hua Jiang
- Department of Pathology, Nanjing Medical University, Nanjing 210029, China.,The Academy of Medical Sciences, Zhengzhou University, Zhengzhou 450001, China.,Department of Pathology, The University of Iowa, Iowa City, IA 52242, USA
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4
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Roberts O, Paraoan L. PERP-ing into diverse mechanisms of cancer pathogenesis: Regulation and role of the p53/p63 effector PERP. Biochim Biophys Acta Rev Cancer 2020; 1874:188393. [PMID: 32679166 DOI: 10.1016/j.bbcan.2020.188393] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 07/11/2020] [Accepted: 07/12/2020] [Indexed: 12/20/2022]
Abstract
The tetraspan plasma membrane protein PERP (p53 apoptosis effector related to PMP22) is a lesser-known transcriptional target of p53 and p63. A member of the PMP22/GAS3/EMP membrane protein family, PERP was originally identified as a p53 target specifically trans-activated during apoptosis, but not during cell-cycle arrest. Several studies have since shown downregulation of PERP expression in numerous cancers, suggesting that PERP is a tumour suppressor protein. This review focusses on the important advances made in elucidating the mechanisms regulating PERP expression and its function as a tumour suppressor in diverse human cancers, including breast cancer and squamous cell carcinoma. Investigating PERP's role in clinically-aggressive uveal melanoma has revealed that PERP engages a positive-feedback loop with p53 to regulate its own expression, and that p63 is required beside p53 to achieve pro-apoptotic levels of PERP in this cancer. Furthermore, the recent discovery of the apoptosis-mediating interaction of PERP with SERCA2b at the plasma membrane-endoplasmic reticulum interface demonstrates a novel mechanism of PERP stabilisation, and how PERP can mediate Ca2+ signalling to facilitate apoptosis. The multi-faceted role of PERP in cancer, involving well-documented functions in mediating apoptosis and cell-cell adhesion is discussed, alongside PERP's emerging roles in epithelial-mesenchymal transition, and PERP crosstalk with inflammation signalling pathways, and other signalling pathways. The potential for restoring PERP expression as a means of cancer therapy is also considered.
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Affiliation(s)
- Owain Roberts
- Department of Eye and Vision Science, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, United Kingdom
| | - Luminita Paraoan
- Department of Eye and Vision Science, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, United Kingdom.
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5
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Du Q, Zhang W, Feng Q, Hao B, Cheng C, Cheng Y, Li Y, Fan X, Chen Z. Comprehensive circular RNA profiling reveals that hsa_circ_0001368 is involved in growth hormone-secreting pituitary adenoma development. Brain Res Bull 2020; 161:65-77. [PMID: 32389802 DOI: 10.1016/j.brainresbull.2020.04.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 04/03/2020] [Accepted: 04/27/2020] [Indexed: 01/01/2023]
Abstract
Growth hormone-secreting pituitary adenoma (GHPA) represents about 20% of all histological subtypes of pituitary adenoma (PA), which may result in serious complications and shortened lifespan via growth-hormone (GH) hypersecretion. To date, no biomarkers of early diagnosis or therapeutic targets for GHPA treatment have yet been found. Recently, growing evidence has indicated that circular RNAs (circRNAs) are critical for the development and progression of numerous diseases, including cancers; however, their role in the pathogenesis of GHPA has not been reported. Here, we revealed the expression profile of circRNAs in GHPA using a circRNA microarray, and found 1938 circRNAs were upregulated and 1601 circRNAs were downregulated in GHPA versus normal control. Then the ten most up-regulated circRNAs were selected for the mapping of a circRNA-miRNA-target gene interaction network. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses further indicate that target genes were mostly enriched in the mTOR and the Wnt signaling pathway. Among these differentially expressed circRNAs, hsa_circ_0001368 was verified significant up-regulated by qRT-PCR, which was specific up-regulated in GHPA and correlated with the invasiveness and serum GH level of GHPA; functional studies indicated that knockdown of hsa_circ_0001368 significantly inhibited the proliferation, invasion and GH secreting level of GHPA primary culture cells. Moreover, hsa_circ_0001368 had a significant positive correlation with the pituitary-specific transcription factor Pit-1. In conclusion, our study identified a wealth of candidate circRNAs involved in GHPA and proposed that hsa_circ_0001368 may represent a novel potential biomarker and therapeutic target of GHPA.
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Affiliation(s)
- Qiu Du
- Department of Neurosurgery, The Affiliated Hospital of Yangzhou University, Yangzhou 225000, China; Central Laboratory, The Affiliated Hospital of Yangzhou University, Yangzhou 225000, China
| | - Weiyu Zhang
- Department of Neurosurgery, The Fifth Affiliated Hospital of SunYat-sen University, Zhuhai 519000, China
| | - Qingling Feng
- Department of Critical Care Medicine, The Affiliated Hospital of Yangzhou University, Yangzhou 225000, China
| | - Bo Hao
- Faculty of Forensic Medicine, Zhongshan School of Medicine, Zhuhai 519000, China; Guangdong Province Translational Forensic Medicine Engineering Technology Research Center, Zhongshan School of Medicine, Sun Yat-sen University, Zhuhai 519000, China; Guangdong Province Key Laboratory of Brain Function and Disease, Zhongshan School of Medicine, Sun Yat-sen University, Zhuhai 519000, China
| | - Cheng Cheng
- Department of Neurosurgery, The Affiliated Hospital of Yangzhou University, Yangzhou 225000, China
| | - Yunjiu Cheng
- Department of Cardiology, The First Affiliated Hospital of SunYat-sen University, Guangzhou 510080, China
| | - Yehai Li
- Department of Neurosurgery, Guangdong 999 Brain Hospital, Guangzhou 510507, China
| | - Xiang Fan
- Department of Neurosurgery, The Fifth Affiliated Hospital of SunYat-sen University, Zhuhai 519000, China.
| | - Zhiyong Chen
- Department of Neurosurgery, The First Affiliated Hospital of Jinan University, Guangzhou 510632, China.
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6
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Yuan F, Pan X, Zeng T, Zhang YH, Chen L, Gan Z, Huang T, Cai YD. Identifying Cell-Type Specific Genes and Expression Rules Based on Single-Cell Transcriptomic Atlas Data. Front Bioeng Biotechnol 2020; 8:350. [PMID: 32411685 PMCID: PMC7201067 DOI: 10.3389/fbioe.2020.00350] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 03/30/2020] [Indexed: 01/07/2023] Open
Abstract
Single-cell sequencing technologies have emerged to address new and longstanding biological and biomedical questions. Previous studies focused on the analysis of bulk tissue samples composed of millions of cells. However, the genomes within the cells of an individual multicellular organism are not always the same. In this study, we aimed to identify the crucial and characteristically expressed genes that may play functional roles in tissue development and organogenesis, by analyzing a single-cell transcriptomic atlas of mice. We identified the most relevant gene features and decision rules classifying 18 cell categories, providing a list of genes that may perform important functions in the process of tissue development because of their tissue-specific expression patterns. These genes may serve as biomarkers to identify the origin of unknown cell subgroups so as to recognize specific cell stages/states during the dynamic process, and also be applied as potential therapy targets for developmental disorders.
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Affiliation(s)
- Fei Yuan
- School of Life Sciences, Shanghai University, Shanghai, China.,Department of Science and Technology, Binzhou Medical University Hospital, Binzhou, China
| | - XiaoYong Pan
- Institute of Image Processing and Pattern Recognition, Shanghai Jiao Tong University, and Key Laboratory of System Control and Information Processing, Ministry of Education of China, Shanghai, China
| | - Tao Zeng
- Key Laboratory of Systems Biology, Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, China
| | - Yu-Hang Zhang
- Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Lei Chen
- College of Information Engineering, Shanghai Maritime University, Shanghai, China.,Shanghai Key Laboratory of Pure Mathematics and Mathematical Practice, East China Normal University, Shanghai, China
| | - Zijun Gan
- Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Tao Huang
- Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Yu-Dong Cai
- School of Life Sciences, Shanghai University, Shanghai, China
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7
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Gao Q, López-Knowles E, Cheang MCU, Morden J, Ribas R, Sidhu K, Evans D, Martins V, Dodson A, Skene A, Holcombe C, Mallon E, Evans A, Bliss JM, Robertson J, Smith I, Martin LA, Dowsett M. Impact of aromatase inhibitor treatment on global gene expression and its association with antiproliferative response in ER+ breast cancer in postmenopausal patients. Breast Cancer Res 2019; 22:2. [PMID: 31892336 PMCID: PMC6938628 DOI: 10.1186/s13058-019-1223-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 11/04/2019] [Indexed: 12/31/2022] Open
Abstract
Background Endocrine therapy reduces breast cancer mortality by 40%, but resistance remains a major clinical problem. In this study, we sought to investigate the impact of aromatase inhibitor (AI) therapy on gene expression and identify gene modules representing key biological pathways that relate to early AI therapy resistance. Methods Global gene expression was measured on pairs of core-cut biopsies taken at baseline and at surgery from 254 patients with ER-positive primary breast cancer randomised to receive 2-week presurgical AI (n = 198) or no presurgical treatment (control n = 56) from the POETIC trial. Data from the AI group was adjusted to eliminate artefactual process-related changes identified in the control group. The response was assessed by changes in the proliferation marker, Ki67. Results High baseline ESR1 expression associated with better AI response in HER2+ tumours but not HER2− tumours. In HER2− tumours, baseline expression of 48 genes associated with poor antiproliferative response (p < 0.005) including PERP and YWHAQ, the two most significant, and the transcription co-regulators (SAP130, HDAC4, and NCOA7) which were among the top 16 most significant. Baseline gene signature scores measuring cell proliferation, growth factor signalling (ERBB2-GS, RET/GDNF-GS, and IGF-1-GS), and immune activity (STAT1-GS) were significantly higher in poor AI responders. Two weeks of AI caused downregulation of genes involved in cell proliferation and ER signalling, as expected. Signature scores of E2F activation and TP53 dysfunction after 2-week AI were associated with poor AI response in both HER2− and HER2+ patients. Conclusions There is a high degree of heterogeneity in adaptive mechanisms after as little as 2-week AI therapy; however, all appear to converge on cell cycle regulation. Our data support the evaluation of whether an E2F signatures after short-term exposure to AI may identify those patients most likely to benefit from the early addition of CDK4/6 inhibitors. Trial registration ISRCTN, ISRCTN63882543, registered on 18 December 2007.
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Affiliation(s)
- Qiong Gao
- Breast Cancer Now Research Centre, ICR, London, UK
| | - Elena López-Knowles
- Breast Cancer Now Research Centre, ICR, London, UK.,Ralph Lauren Centre for Breast Cancer Research, Royal Marsden Hospital, London, UK
| | - Maggie Chon U Cheang
- Clinical Trials and Statistics Unit, The Institute of Cancer Research, London, UK
| | - James Morden
- Clinical Trials and Statistics Unit, The Institute of Cancer Research, London, UK
| | | | - Kally Sidhu
- Ralph Lauren Centre for Breast Cancer Research, Royal Marsden Hospital, London, UK
| | - David Evans
- Ralph Lauren Centre for Breast Cancer Research, Royal Marsden Hospital, London, UK
| | - Vera Martins
- Ralph Lauren Centre for Breast Cancer Research, Royal Marsden Hospital, London, UK
| | - Andrew Dodson
- Ralph Lauren Centre for Breast Cancer Research, Royal Marsden Hospital, London, UK
| | - Anthony Skene
- Royal Bournemouth Hospital, Castle Lane East, Bournemouth, UK
| | - Chris Holcombe
- Royal Liverpool University Hospital, 200 London Road, Liverpool, UK
| | | | | | - Judith M Bliss
- Clinical Trials and Statistics Unit, The Institute of Cancer Research, London, UK
| | | | - Ian Smith
- Breast Unit, Royal Marsden Hospital, London, UK
| | | | - Mitch Dowsett
- Breast Cancer Now Research Centre, ICR, London, UK. .,Ralph Lauren Centre for Breast Cancer Research, Royal Marsden Hospital, London, UK.
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Ezzat S, Caspar-Bell GM, Chik CL, Denis MC, Domingue MÈ, Imran SA, Johnson MD, Lochnan HA, Grégoire Nyomba BL, Prebtani A, Ridout R, Ramirez JAR, Van Uum S. PREDICTIVE MARKERS FOR POSTSURGICAL MEDICAL MANAGEMENT OF ACROMEGALY: A SYSTEMATIC REVIEW AND CONSENSUS TREATMENT GUIDELINE. Endocr Pract 2019; 25:379-393. [PMID: 30657362 DOI: 10.4158/ep-2018-0500] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Objective: To clarify the selection of medical therapy following transsphenoidal surgery in patients with acromegaly, based on growth hormone (GH)/insulin-like growth factor 1 (IGF-1) response and glucometabolic control. Methods: We carried out a systematic literature review on three of the best studied and most practical predictive markers of the response to somatostatin analogues (SSAs): somatostatin receptor (SSTR) expression, tumor morphologic classification, and T2-weighted magnetic resonance imaging (MRI) signal intensity. Additional analyses focused on glucose metabolism in treated patients. Results: The literature survey confirmed significant associations of all three factors with SSA responsiveness. SSTR expression appears necessary for the SSA response; however, it is not sufficient, as approximately half of SSTR2-positive tumors failed to respond clinically to first-generation SSAs. MRI findings (T2-hypo-intensity) and a densely granulated phenotype also correlate with SSA efficacy, and are advantageous as predictive markers relative to SSTR expression alone. Glucometabolic control declines with SSA monotherapy, whereas GH receptor antagonist (GHRA) monotherapy may restore normoglycemia. Conclusion: We propose a decision tree to guide selection among SSAs, dopamine agonists (DAs), and GHRA for medical treatment of acromegaly in the postsurgical setting. This decision tree employs three validated predictive markers and other clinical considerations, to determine whether SSAs are appropriate first-line medical therapy in the postsurgical setting. DA treatment is favored in patients with modest IGF-1 elevation. GHRA treatment should be considered for patients with T2-hyperintense tumors with a sparsely granulated phenotype and/or low SSTR2 staining, and may also be favored for individuals with diabetes. Prospective analyses are required to test the utility of this therapeutic paradigm. Abbreviations: DA = dopamine agonist; DG = densely granulated; GH = growth hormone; GHRA = growth hormone receptor antagonist; HbA1c = glycated hemoglobin; IGF-1 = insulin-like growth factor-1; MRI = magnetic resonance imaging; SG = sparsely granulated; SSA = somatostatin analogue; SSTR = somatostatin receptor.
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9
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Wang D, Gao Z, Zhang X. Resveratrol Induces Apoptosis in Murine Prostate Cancer Cells via Hypoxia-Inducible Factor 1-alpha (HIF-1α)/Reactive Oxygen Species (ROS)/P53 Signaling. Med Sci Monit 2018; 24:8970-8976. [PMID: 30531685 PMCID: PMC6298174 DOI: 10.12659/msm.913290] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Resveratrol, a polyphenol found on the surface of red fruits, is able to suppress many kinds of malignancies. Nevertheless, its mechanism of action is not yet clear. Consequently, this study aimed to elucidate its influence and explore the etiology of PCCs (prostate cancer cells). MATERIAL AND METHODS The proliferation of prostate cancer cells was determined by CCK-8 assay. Cell apoptosis was determined by Hoechst staining FC assay. Cell migration was detected by scratch test. The levels of apoptosis-related protein were detected by Western blot analysis. RESULTS It was discovered that resveratrol suppresses cellular survival and migration and enhances cell death. In addition, it was revealed that resveratrol elevated ROS concentration and expression of biomarker of cell death Bax, while inhibiting Bcl2, an anti-apoptotic protein, and reinforcing expression of p53. Moreover, resveratrol remarkably increased the expressions of HIF-1α and p53 in PC cells. Resveratrol suppressed cell survival and promoted cell death, but its effects were reversed after HIF-1α knockdown, suggesting that the effects of resveratrol in PC are mediated via HIF-1α. CONCLUSIONS Our findings indicate that resveratrol induces apoptosis via HIF-1α/ROS/p53 signaling in prostate cancer cells and may be a useful therapeutic agent against prostate cancer.
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Affiliation(s)
- Delong Wang
- Department of Urology Surgery, The Affiliated Zhongshan Hospital Dalian University, Dalian, Liaoning, China (mainland)
| | - Zefeng Gao
- Department of Urology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China (mainland)
| | - Xin Zhang
- Department of Urology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China (mainland)
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10
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Arellano VJ, Martinell García P, Rodríguez Plaza JG, Lara Ortiz MT, Schreiber G, Volkmer R, Klipp E, Rio GD. An Antimicrobial Peptide Induces FIG1-Dependent Cell Death During Cell Cycle Arrest in Yeast. Front Microbiol 2018; 9:1240. [PMID: 29963019 PMCID: PMC6010521 DOI: 10.3389/fmicb.2018.01240] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 05/23/2018] [Indexed: 12/30/2022] Open
Abstract
Although most antibiotics act on cells that are actively dividing and non-dividing cells such as in microbe sporulation or cancer stem cells represent a new paradigm for the control of disease. In addition to their relevance to health, such antibiotics may promote our understanding of the relationship between the cell cycle and cell death. No antibiotic specifically acting on microbial cells arrested in their cell cycle has been identified until the present time. In this study we used an antimicrobial peptide derived from α-pheromone, IP-1, targeted against MATa Saccharomyces cerevisiae cells in order to assess its dependence on cell cycle arrest to kill cells. Analysis by flow cytometry and fluorescence microscopy of various null mutations of genes involved in biological processes activated by the pheromone pathway (the mitogen-activated protein kinase pathway, cell cycle arrest, cell proliferation, autophagy, calcium influx) showed that IP-1 requires arrest in G0/G1 in order to kill yeast cells. Isolating cells in different cell cycle phases by elutriation provided further evidence that entry into cell cycle arrest, and not into G1 phase, is necessary if our peptide is to kill yeast cells. We also describe a variant of IP-1 that does not activate the pheromone pathway and consequently does not kill yeast cells that express the pheromone’s receptor; the use of this variant peptide in combination with different cell cycle inhibitors that induce cell cycle arrest independently of the pheromone pathway confirmed that it is cell cycle arrest that is required for the cell death induced by this peptide in yeast. We show that the cell death induced by IP-1 differs from that induced by α-pheromone and depends on FIG1 in a way independent of the cell cycle arrest induced by the pheromone. Thus, IP-1 is the first molecule described that specifically kills microbial cells during cell cycle arrest, a subject of interest beyond the process of mating in yeast cells. The experimental system described in this study should be useful in the study of the mechanisms at play in the communication between cell cycle arrest and cell death on other organisms, hence promoting the development of new antibiotics.
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Affiliation(s)
- Vladimir J Arellano
- Departamento de Bioquímica y Biología Estructural, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Paula Martinell García
- Departamento de Bioquímica y Biología Estructural, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Mexico City, Mexico.,Theoretische Biophysik, Humboldt-Universität zu Berlin, Berlin, Germany
| | | | - Maria T Lara Ortiz
- Departamento de Bioquímica y Biología Estructural, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | | | - Rudolf Volkmer
- Institut für Medizinische Immunologie, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Leibniz-Institut für Molekulare Pharmakologie, Berlin, Germany
| | - Edda Klipp
- Theoretische Biophysik, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Gabriel Del Rio
- Departamento de Bioquímica y Biología Estructural, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Mexico City, Mexico
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